function getUserName(){
		$.ajax({
	    type: "post",
	    url: "/r/UserName",
	    dataType: "json",
	    success: function (data, textStatus) {
	    	console.log(data);
	        document.getElementById("userName").innerHTML = "欢迎您 ： " + data[0];
	        if(data[1] == "true"){
	        	document.getElementById("superRole").innerHTML = data[2];
	        }
	    },
	    error: function (XMLHttpRequest, textStatus, errorThrown) {
	    	
	    },
	    complete: function (XMLHttpRequest, textStatus) {
	        this; // 调用本次AJAX请求时传递的options参数
	    }
	});
}